There are two constitutional isomers with molecular formula C3H7Cl, because there are

Step 1 of 2

There are two constitutional isomers with molecular formula , because there are two possibilities for the location of the chlorine atom. It can be connected either to the central carbon atom or to one of the other two (equivalent) carbon atoms.

We need to draw both isomers.

Begin by determining the valency of each atom that appears in the molecular formula. The carbon atoms are tetravalent, while the chlorine atom and hydrogen atoms are all monovalent. The atoms with more than one bond (in this case, the three carbon atoms) should be drawn in the center of the compound.